Who's the 'biggest' manc to have played for us?
Dunno about biggest but there's been a few 'Manc-born' in recent times...
Nathan Eccleston, remember him?
Youth players like James Balagizi, Cameron Brannagan and Ryan Kent were/are all Manc born (as was Tom Ince, I believe).
I don't think modern scouting cares much where a player is born.
As posted above though, Whelan was a massive Manc fan - weirdo!